Thermal insulation dunnage and method
US10099836B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/051
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for making an insulating dunnage product (10) includes the steps of (a) permanently deforming at least one non-planar interior layer (12) that includes a paper sheet to form a plurality of air pockets (14), (b) surrounding the at least one interior layer (12) on all four sides and over the top and bottom sides of the at least one interior layer (12) with at least one outer layer (16) of sheet material and (c) peripherally sealing the at least one outer layer (16) to capture the at least one interior layer (12) therein such that the interior layer (12) has major portions that are free to shift relative to adjacent portions of the at least one outer layer (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.